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The surviving suspect in the Boston Marathon bombings suffered an injury to his throat and may not be able to talk, a federal official told CNN on Saturday, possibly hindering attempts by authorities to question him about a motive in the attack.<\/span><\/p>\n <\/span><\/p>\n With one suspect dead, authorities believe answers to a motive and whether the brothers had help rest with Dzhokar Tsarnaev, who was captured Friday night just minutes after authorities had indicated that a massive manhunt for the suspect appeared to come up empty.<\/span><\/p>\n <\/span><\/p>\n The official, who was briefed on Tsarnaev’s condition, spoke on condition of anonymity.<\/span><\/p>\n <\/span><\/p>\n Tsarnaev was in “serious but stable condition” and “not yet able to communicate yet,” Massachusetts Gov. Deval Patrick told reporters during an impromptu briefing on Saturday.<\/span><\/p>\n <\/span><\/p>\n Federal prosecutors are at the heavily guarded Beth Israel Deaconess Medical Center, where Tsarnaev is being treated for wounds.<\/span><\/p>\n <\/span><\/p>\n